1 //===- llvm/unittest/ADT/BitVectorTest.cpp - BitVector tests --------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // Some of these tests fail on PowerPC for unknown reasons. 11 #ifndef __ppc__ 12 13 #include "llvm/ADT/BitVector.h" 14 #include "llvm/ADT/SmallBitVector.h" 15 #include "gtest/gtest.h" 16 17 using namespace llvm; 18 19 namespace { 20 21 // Test fixture 22 template <typename T> 23 class BitVectorTest : public ::testing::Test { }; 24 25 // Test both BitVector and SmallBitVector with the same suite of tests. 26 typedef ::testing::Types<BitVector, SmallBitVector> BitVectorTestTypes; 27 TYPED_TEST_CASE(BitVectorTest, BitVectorTestTypes); 28 29 TYPED_TEST(BitVectorTest, TrivialOperation) { 30 TypeParam Vec; 31 EXPECT_EQ(0U, Vec.count()); 32 EXPECT_EQ(0U, Vec.size()); 33 EXPECT_FALSE(Vec.any()); 34 EXPECT_TRUE(Vec.all()); 35 EXPECT_TRUE(Vec.none()); 36 EXPECT_TRUE(Vec.empty()); 37 38 Vec.resize(5, true); 39 EXPECT_EQ(5U, Vec.count()); 40 EXPECT_EQ(5U, Vec.size()); 41 EXPECT_TRUE(Vec.any()); 42 EXPECT_TRUE(Vec.all()); 43 EXPECT_FALSE(Vec.none()); 44 EXPECT_FALSE(Vec.empty()); 45 46 Vec.resize(11); 47 EXPECT_EQ(5U, Vec.count()); 48 EXPECT_EQ(11U, Vec.size()); 49 EXPECT_TRUE(Vec.any()); 50 EXPECT_FALSE(Vec.all()); 51 EXPECT_FALSE(Vec.none()); 52 EXPECT_FALSE(Vec.empty()); 53 54 TypeParam Inv = Vec; 55 Inv.flip(); 56 EXPECT_EQ(6U, Inv.count()); 57 EXPECT_EQ(11U, Inv.size()); 58 EXPECT_TRUE(Inv.any()); 59 EXPECT_FALSE(Inv.all()); 60 EXPECT_FALSE(Inv.none()); 61 EXPECT_FALSE(Inv.empty()); 62 63 EXPECT_FALSE(Inv == Vec); 64 EXPECT_TRUE(Inv != Vec); 65 Vec.flip(); 66 EXPECT_TRUE(Inv == Vec); 67 EXPECT_FALSE(Inv != Vec); 68 69 // Add some "interesting" data to Vec. 70 Vec.resize(23, true); 71 Vec.resize(25, false); 72 Vec.resize(26, true); 73 Vec.resize(29, false); 74 Vec.resize(33, true); 75 Vec.resize(57, false); 76 unsigned Count = 0; 77 for (unsigned i = Vec.find_first(); i != -1u; i = Vec.find_next(i)) { 78 ++Count; 79 EXPECT_TRUE(Vec[i]); 80 EXPECT_TRUE(Vec.test(i)); 81 } 82 EXPECT_EQ(Count, Vec.count()); 83 EXPECT_EQ(Count, 23u); 84 EXPECT_FALSE(Vec[0]); 85 EXPECT_TRUE(Vec[32]); 86 EXPECT_FALSE(Vec[56]); 87 Vec.resize(61, false); 88 89 TypeParam Copy = Vec; 90 TypeParam Alt(3, false); 91 Alt.resize(6, true); 92 std::swap(Alt, Vec); 93 EXPECT_TRUE(Copy == Alt); 94 EXPECT_TRUE(Vec.size() == 6); 95 EXPECT_TRUE(Vec.count() == 3); 96 EXPECT_TRUE(Vec.find_first() == 3); 97 std::swap(Copy, Vec); 98 99 // Add some more "interesting" data. 100 Vec.resize(68, true); 101 Vec.resize(78, false); 102 Vec.resize(89, true); 103 Vec.resize(90, false); 104 Vec.resize(91, true); 105 Vec.resize(130, false); 106 Count = 0; 107 for (unsigned i = Vec.find_first(); i != -1u; i = Vec.find_next(i)) { 108 ++Count; 109 EXPECT_TRUE(Vec[i]); 110 EXPECT_TRUE(Vec.test(i)); 111 } 112 EXPECT_EQ(Count, Vec.count()); 113 EXPECT_EQ(Count, 42u); 114 EXPECT_FALSE(Vec[0]); 115 EXPECT_TRUE(Vec[32]); 116 EXPECT_FALSE(Vec[60]); 117 EXPECT_FALSE(Vec[129]); 118 119 Vec.flip(60); 120 EXPECT_TRUE(Vec[60]); 121 EXPECT_EQ(Count + 1, Vec.count()); 122 Vec.flip(60); 123 EXPECT_FALSE(Vec[60]); 124 EXPECT_EQ(Count, Vec.count()); 125 126 Vec.reset(32); 127 EXPECT_FALSE(Vec[32]); 128 EXPECT_EQ(Count - 1, Vec.count()); 129 Vec.set(32); 130 EXPECT_TRUE(Vec[32]); 131 EXPECT_EQ(Count, Vec.count()); 132 133 Vec.flip(); 134 EXPECT_EQ(Vec.size() - Count, Vec.count()); 135 136 Vec.reset(); 137 EXPECT_EQ(0U, Vec.count()); 138 EXPECT_EQ(130U, Vec.size()); 139 EXPECT_FALSE(Vec.any()); 140 EXPECT_FALSE(Vec.all()); 141 EXPECT_TRUE(Vec.none()); 142 EXPECT_FALSE(Vec.empty()); 143 144 Inv = TypeParam().flip(); 145 EXPECT_EQ(0U, Inv.count()); 146 EXPECT_EQ(0U, Inv.size()); 147 EXPECT_FALSE(Inv.any()); 148 EXPECT_TRUE(Inv.all()); 149 EXPECT_TRUE(Inv.none()); 150 EXPECT_TRUE(Inv.empty()); 151 152 Vec.clear(); 153 EXPECT_EQ(0U, Vec.count()); 154 EXPECT_EQ(0U, Vec.size()); 155 EXPECT_FALSE(Vec.any()); 156 EXPECT_TRUE(Vec.all()); 157 EXPECT_TRUE(Vec.none()); 158 EXPECT_TRUE(Vec.empty()); 159 } 160 161 TYPED_TEST(BitVectorTest, CompoundAssignment) { 162 TypeParam A; 163 A.resize(10); 164 A.set(4); 165 A.set(7); 166 167 TypeParam B; 168 B.resize(50); 169 B.set(5); 170 B.set(18); 171 172 A |= B; 173 EXPECT_TRUE(A.test(4)); 174 EXPECT_TRUE(A.test(5)); 175 EXPECT_TRUE(A.test(7)); 176 EXPECT_TRUE(A.test(18)); 177 EXPECT_EQ(4U, A.count()); 178 EXPECT_EQ(50U, A.size()); 179 180 B.resize(10); 181 B.set(); 182 B.reset(2); 183 B.reset(7); 184 A &= B; 185 EXPECT_FALSE(A.test(2)); 186 EXPECT_FALSE(A.test(7)); 187 EXPECT_EQ(2U, A.count()); 188 EXPECT_EQ(50U, A.size()); 189 190 B.resize(100); 191 B.set(); 192 193 A ^= B; 194 EXPECT_TRUE(A.test(2)); 195 EXPECT_TRUE(A.test(7)); 196 EXPECT_EQ(98U, A.count()); 197 EXPECT_EQ(100U, A.size()); 198 } 199 200 TYPED_TEST(BitVectorTest, ProxyIndex) { 201 TypeParam Vec(3); 202 EXPECT_TRUE(Vec.none()); 203 Vec[0] = Vec[1] = Vec[2] = true; 204 EXPECT_EQ(Vec.size(), Vec.count()); 205 Vec[2] = Vec[1] = Vec[0] = false; 206 EXPECT_TRUE(Vec.none()); 207 } 208 209 TYPED_TEST(BitVectorTest, PortableBitMask) { 210 TypeParam A; 211 const uint32_t Mask1[] = { 0x80000000, 6, 5 }; 212 213 A.resize(10); 214 A.setBitsInMask(Mask1, 3); 215 EXPECT_EQ(10u, A.size()); 216 EXPECT_FALSE(A.test(0)); 217 218 A.resize(32); 219 A.setBitsInMask(Mask1, 3); 220 EXPECT_FALSE(A.test(0)); 221 EXPECT_TRUE(A.test(31)); 222 EXPECT_EQ(1u, A.count()); 223 224 A.resize(33); 225 A.setBitsInMask(Mask1, 1); 226 EXPECT_EQ(1u, A.count()); 227 A.setBitsInMask(Mask1, 2); 228 EXPECT_EQ(1u, A.count()); 229 230 A.resize(34); 231 A.setBitsInMask(Mask1, 2); 232 EXPECT_EQ(2u, A.count()); 233 234 A.resize(65); 235 A.setBitsInMask(Mask1, 3); 236 EXPECT_EQ(4u, A.count()); 237 238 A.setBitsNotInMask(Mask1, 1); 239 EXPECT_EQ(32u+3u, A.count()); 240 241 A.setBitsNotInMask(Mask1, 3); 242 EXPECT_EQ(65u, A.count()); 243 244 A.resize(96); 245 EXPECT_EQ(65u, A.count()); 246 247 A.clear(); 248 A.resize(128); 249 A.setBitsNotInMask(Mask1, 3); 250 EXPECT_EQ(96u-5u, A.count()); 251 252 A.clearBitsNotInMask(Mask1, 1); 253 EXPECT_EQ(64-4u, A.count()); 254 } 255 256 TYPED_TEST(BitVectorTest, BinOps) { 257 TypeParam A; 258 TypeParam B; 259 260 A.resize(65); 261 EXPECT_FALSE(A.anyCommon(B)); 262 EXPECT_FALSE(B.anyCommon(B)); 263 264 B.resize(64); 265 A.set(64); 266 EXPECT_FALSE(A.anyCommon(B)); 267 EXPECT_FALSE(B.anyCommon(A)); 268 269 B.set(63); 270 EXPECT_FALSE(A.anyCommon(B)); 271 EXPECT_FALSE(B.anyCommon(A)); 272 273 A.set(63); 274 EXPECT_TRUE(A.anyCommon(B)); 275 EXPECT_TRUE(B.anyCommon(A)); 276 277 B.resize(70); 278 B.set(64); 279 B.reset(63); 280 A.resize(64); 281 EXPECT_FALSE(A.anyCommon(B)); 282 EXPECT_FALSE(B.anyCommon(A)); 283 } 284 285 TYPED_TEST(BitVectorTest, RangeOps) { 286 TypeParam A; 287 A.resize(256); 288 A.reset(); 289 A.set(1, 255); 290 291 EXPECT_FALSE(A.test(0)); 292 EXPECT_TRUE( A.test(1)); 293 EXPECT_TRUE( A.test(23)); 294 EXPECT_TRUE( A.test(254)); 295 EXPECT_FALSE(A.test(255)); 296 297 TypeParam B; 298 B.resize(256); 299 B.set(); 300 B.reset(1, 255); 301 302 EXPECT_TRUE( B.test(0)); 303 EXPECT_FALSE(B.test(1)); 304 EXPECT_FALSE(B.test(23)); 305 EXPECT_FALSE(B.test(254)); 306 EXPECT_TRUE( B.test(255)); 307 308 TypeParam C; 309 C.resize(3); 310 C.reset(); 311 C.set(0, 1); 312 313 EXPECT_TRUE(C.test(0)); 314 EXPECT_FALSE( C.test(1)); 315 EXPECT_FALSE( C.test(2)); 316 317 TypeParam D; 318 D.resize(3); 319 D.set(); 320 D.reset(0, 1); 321 322 EXPECT_FALSE(D.test(0)); 323 EXPECT_TRUE( D.test(1)); 324 EXPECT_TRUE( D.test(2)); 325 326 TypeParam E; 327 E.resize(128); 328 E.reset(); 329 E.set(1, 33); 330 331 EXPECT_FALSE(E.test(0)); 332 EXPECT_TRUE( E.test(1)); 333 EXPECT_TRUE( E.test(32)); 334 EXPECT_FALSE(E.test(33)); 335 } 336 } 337 #endif 338
